:root {
  --bg: #0d1117;
  --bg-panel: #161b22;
  --bg-elevated: #1c2128;
  --border: #30363d;
  --border-bright: #484f58;
  --text: #e6edf3;
  --text-dim: #8b949e;
  --accent: #f0a202;
  --accent-dim: #c48200;
  --green: #3fb950;
  --red: #f85149;
  --blue: #58a6ff;
  --cyan: #39d2c0;
  --x: #ff6b6b;
  --y: #51cf66;
  --z: #74c0fc;
  --mono: "SF Mono", "Cascadia Code", "Fira Code", Consolas, Menlo, monospace;
  --sans: "Segoe UI", system-ui, -apple-system, sans-serif;
  --radius: 8px;
}

*, *::before, *::after { box-sizing: border-box; }

html, body {
  margin: 0;
  height: 100%;
  background: var(--bg);
  color: var(--text);
  font-family: var(--sans);
  font-size: 14px;
}

.app {
  min-height: 100%;
  display: flex;
  flex-direction: column;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.65rem 1rem;
  background: linear-gradient(180deg, #1a1f27, #12161c);
  border-bottom: 1px solid var(--border);
}

.brand { display: flex; align-items: center; gap: 0.75rem; }
.brand-mark {
  width: 2.25rem; height: 2.25rem;
  display: grid; place-items: center;
  background: radial-gradient(circle at 30% 30%, #3a3f48, #1a1e24);
  border: 1px solid var(--border-bright);
  border-radius: 6px;
  font-size: 1.2rem;
  color: var(--accent);
}
.brand h1 {
  margin: 0;
  font-size: 1.05rem;
  font-weight: 600;
  letter-spacing: 0.02em;
}
.tagline { margin: 0; color: var(--text-dim); font-size: 0.75rem; }

.top-actions { display: flex; align-items: center; gap: 1rem; }
.speed-label {
  display: flex; align-items: center; gap: 0.5rem;
  color: var(--text-dim); font-size: 0.8rem;
}
.speed-label input[type="range"] { width: 120px; accent-color: var(--accent); }
#speedValue { min-width: 2.5rem; color: var(--accent); font-family: var(--mono); }

.workspace {
  flex: 1;
  display: grid;
  grid-template-columns: minmax(260px, 1fr) minmax(380px, 1.6fr) minmax(240px, 0.85fr);
  gap: 0.65rem;
  padding: 0.65rem;
  min-height: 0;
}

.panel {
  background: var(--bg-panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  display: flex;
  flex-direction: column;
  min-height: 0;
  overflow: hidden;
}

.panel-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
  padding: 0.5rem 0.75rem;
  border-bottom: 1px solid var(--border);
  background: var(--bg-elevated);
}
.panel-header.tight { margin-top: 0.5rem; border-top: 1px solid var(--border); }
.panel-header h2 {
  margin: 0;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-dim);
  font-weight: 600;
}

.btn-row { display: flex; gap: 0.35rem; align-items: center; }
.view-tabs { display: flex; gap: 0.35rem; }
.chip {
  font-size: 0.7rem;
  padding: 0.15rem 0.45rem;
  border-radius: 999px;
  background: #21262d;
  border: 1px solid var(--border);
  color: var(--text);
}
.chip.muted { color: var(--text-dim); }

.btn {
  font: inherit;
  cursor: pointer;
  border: 1px solid var(--border-bright);
  background: #21262d;
  color: var(--text);
  padding: 0.4rem 0.7rem;
  border-radius: 6px;
  transition: background 0.12s, border-color 0.12s;
}
.btn:hover { background: #2a313a; border-color: #6e7681; }
.btn.primary {
  background: linear-gradient(180deg, #f5b420, #c48200);
  border-color: #d4a017;
  color: #1a1200;
  font-weight: 600;
}
.btn.primary:hover { filter: brightness(1.08); }
.btn.secondary { background: #1f6feb22; border-color: #1f6feb66; color: var(--blue); }
.btn.danger { border-color: #f8514966; color: var(--red); }
.btn.ghost { background: transparent; }
.btn.block { width: 100%; margin-top: 0.4rem; }
.btn:disabled { opacity: 0.45; cursor: not-allowed; }

select, input[type="number"] {
  font: inherit;
  background: #0d1117;
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 5px;
  padding: 0.3rem 0.4rem;
}
select { max-width: 11rem; }

/* Editor */
.editor-panel { min-height: 420px; }
.editor-panel:has(#gcodeDetails:not([open])),
.workspace.gcode-collapsed .editor-panel {
  min-height: 0;
}
.workspace.gcode-collapsed {
  grid-template-columns: minmax(200px, 0.7fr) minmax(420px, 2fr) minmax(240px, 0.9fr);
}

/* Collapsible G-code details */
details#gcodeDetails {
  display: flex;
  flex-direction: column;
  min-height: 0;
  flex: 1 1 auto;
}
details#gcodeDetails:not([open]) {
  flex: 0 0 auto;
}
details#gcodeDetails > summary.gcode-summary {
  list-style: none;
  cursor: pointer;
  user-select: none;
}
details#gcodeDetails > summary.gcode-summary::-webkit-details-marker { display: none; }
details#gcodeDetails > summary.gcode-summary::marker { content: ""; }
.gcode-summary-title {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}
.gcode-hint {
  font-size: 0.68rem;
  color: var(--accent);
  font-weight: 500;
  text-transform: none;
  letter-spacing: 0;
}
details#gcodeDetails[open] .gcode-hint { display: none; }
details#gcodeDetails[open] .editor-wrap {
  flex: 1 1 auto;
  min-height: 160px;
}

/* Finished part reference */
.finished-ref {
  padding-bottom: 0.25rem;
}
.finished-ref .panel-header.tight {
  margin-top: 0;
  border-top: none;
}
.finished-ref-figure {
  margin: 0.45rem 0.75rem 0.35rem;
  padding: 0;
}
.finished-ref-figure img {
  display: block;
  width: 100%;
  max-height: 220px;
  object-fit: contain;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: #e8eaee;
}
.finished-ref-figure img:not([src]),
.finished-ref-figure img[src=""] {
  display: none;
}
.finished-ref-figure figcaption {
  margin-top: 0.35rem;
  font-size: 0.68rem;
  color: var(--text-dim);
  line-height: 1.35;
}
.finished-ref.placeholder .finished-ref-figure img { display: none; }

.editor-wrap {
  flex: 1;
  display: flex;
  min-height: 0;
  overflow: hidden;
  background: #0a0e14;
}
.line-numbers {
  flex: 0 0 2.6rem;
  padding: 0.75rem 0.35rem;
  text-align: right;
  font-family: var(--mono);
  font-size: 12px;
  line-height: 1.45;
  color: #484f58;
  background: #0d1117;
  border-right: 1px solid var(--border);
  overflow: hidden;
  user-select: none;
  white-space: pre;
}
.line-numbers .current {
  color: var(--accent);
  background: #f0a20222;
  margin: 0 -0.35rem;
  padding: 0 0.35rem;
  display: block;
}
#gcodeEditor {
  flex: 1;
  resize: none;
  border: none;
  outline: none;
  background: transparent;
  color: #c9d1d9;
  font-family: var(--mono);
  font-size: 12px;
  line-height: 1.45;
  padding: 0.75rem 0.6rem;
  tab-size: 2;
  white-space: pre;
  overflow: auto;
}
.parse-status {
  padding: 0.4rem 0.75rem;
  font-size: 0.75rem;
  border-top: 1px solid var(--border);
  color: var(--text-dim);
  min-height: 1.8rem;
}
.parse-status.ok { color: var(--green); }
.parse-status.err { color: var(--red); }
.parse-status.warn { color: var(--accent); }

/* Viz */
.viz-panel { min-height: 420px; }
.canvas-stack {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  padding: 0.5rem;
  min-height: 0;
  background: #0a0e14;
}
#isoCanvas {
  width: 100%;
  flex: 1 1 auto;
  min-height: 240px;
  background: #0c1018;
  border: 1px solid var(--border);
  border-radius: 4px;
  display: block;
}
.secondary-views {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.35rem;
  flex: 0 0 auto;
  min-height: 130px;
  max-height: 180px;
}
#mainCanvas, #sideCanvas {
  width: 100%;
  height: 100%;
  min-height: 120px;
  background: #0c1018;
  border: 1px solid var(--border);
  border-radius: 4px;
  display: block;
}

.transport {
  display: flex;
  gap: 0.4rem;
  padding: 0.55rem 0.75rem;
  border-top: 1px solid var(--border);
  background: var(--bg-elevated);
  flex-wrap: wrap;
}

/* DRO */
.side-panel {
  overflow-y: auto;
  padding-bottom: 0.5rem;
}
.dro {
  padding: 0.6rem 0.75rem;
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  font-family: var(--mono);
}
.dro-row {
  display: grid;
  grid-template-columns: 1.4rem 1fr 1.6rem;
  align-items: center;
  gap: 0.4rem;
  background: #0a0e14;
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 0.45rem 0.55rem;
}
.dro-row .axis {
  font-weight: 700;
  font-size: 0.95rem;
}
.dro-row .axis.x { color: var(--x); }
.dro-row .axis.y { color: var(--y); }
.dro-row .axis.z { color: var(--z); }
.dro-row .val {
  text-align: right;
  font-size: 1.15rem;
  letter-spacing: 0.04em;
  color: #f0f3f6;
}
.dro-row .unit { color: var(--text-dim); font-size: 0.7rem; text-align: right; }

.status-grid {
  margin: 0;
  padding: 0 0.75rem 0.5rem;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.35rem;
}
.status-grid > div {
  background: #0a0e14;
  border: 1px solid var(--border);
  border-radius: 5px;
  padding: 0.35rem 0.45rem;
}
.status-grid dt {
  margin: 0;
  font-size: 0.65rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-dim);
}
.status-grid dd {
  margin: 0.1rem 0 0;
  font-family: var(--mono);
  font-size: 0.8rem;
  color: var(--cyan);
}
#stSpindle.on { color: var(--green); }
#stSpindle.off { color: var(--text-dim); }
#stStatus.error { color: var(--red); }
#stStatus.running { color: var(--green); }
#stStatus.paused { color: var(--accent); }

.config-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.35rem;
  padding: 0.5rem 0.75rem 0;
}
.config-grid label {
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
  font-size: 0.7rem;
  color: var(--text-dim);
}
.config-grid input { width: 100%; }
#btnApplyStock { margin: 0.4rem 0.75rem 0; width: calc(100% - 1.5rem); }

.help-panel { padding: 0 0.75rem; }
.help-content {
  font-size: 0.78rem;
  color: var(--text-dim);
  line-height: 1.45;
}
.help-content ul { margin: 0.4rem 0; padding-left: 1.1rem; }
.help-content li { margin: 0.15rem 0; }
.help-content strong { color: var(--text); }
.help-content .hint { color: var(--accent); font-size: 0.72rem; }
.help-panel.hidden { display: none; }

.warnings {
  margin: 0.5rem 0.75rem;
  font-size: 0.72rem;
  max-height: 8rem;
  overflow-y: auto;
}
.warnings .warn-item {
  background: #f0a20215;
  border-left: 3px solid var(--accent);
  padding: 0.3rem 0.45rem;
  margin-bottom: 0.3rem;
  color: #e3b341;
  font-family: var(--mono);
}
.warnings .err-item {
  background: #f8514915;
  border-left: 3px solid var(--red);
  padding: 0.3rem 0.45rem;
  margin-bottom: 0.3rem;
  color: #ffa198;
  font-family: var(--mono);
}

.footer {
  padding: 0.4rem 1rem;
  border-top: 1px solid var(--border);
  color: var(--text-dim);
  font-size: 0.7rem;
  text-align: center;
}

@media (max-width: 1100px) {
  .workspace {
    grid-template-columns: 1fr 1fr;
    grid-template-rows: auto auto;
  }
  .side-panel { grid-column: 1 / -1; }
}
@media (max-width: 720px) {
  .workspace { grid-template-columns: 1fr; }
  .topbar { flex-wrap: wrap; }
}

/* Multi-axis DRO + toggles */
:root {
  --a: #e3b341;
  --b: #d2a8ff;
}

.axis-mode-label {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  color: var(--text-dim);
  font-size: 0.8rem;
}
.axis-mode-label select {
  max-width: 9.5rem;
  font-size: 0.8rem;
}

.dro-row .axis.a { color: var(--a); }
.dro-row .axis.b { color: var(--b); }
.dro-row.dro-rotary { display: none; }

.toggle-opt {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  margin-left: 0.35rem;
  font-size: 0.75rem;
  color: var(--text-dim);
  user-select: none;
  cursor: pointer;
}
.toggle-opt input {
  accent-color: var(--accent);
  cursor: pointer;
}

/* ── Part catalog ─────────────────────────────────────────────── */
.part-catalog {
  padding: 0.55rem 1rem 0.35rem;
  border-bottom: 1px solid var(--border);
  background: #12161c;
}
.part-catalog-header {
  display: flex;
  align-items: baseline;
  gap: 0.75rem;
  margin-bottom: 0.4rem;
}
.part-catalog-header h2 {
  margin: 0;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-dim);
}
.part-catalog-hint {
  font-size: 0.72rem;
  color: var(--accent);
}
.part-cards {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: 0.4rem;
}
.part-card {
  text-align: left;
  font: inherit;
  cursor: pointer;
  background: #161b22;
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 0.5rem 0.6rem;
  color: var(--text);
  display: flex;
  flex-direction: row;
  align-items: flex-start;
  gap: 0.45rem;
  transition: border-color 0.12s, background 0.12s;
}
.part-card-body {
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
  min-width: 0;
  flex: 1;
}
.part-thumb {
  width: 56px;
  height: 56px;
  object-fit: contain;
  border-radius: 6px;
  border: 1px solid var(--border);
  flex-shrink: 0;
  background: #e8eaee;
}
.part-card:hover {
  border-color: #6e7681;
  background: #1c2128;
}
.part-card.selected {
  border-color: var(--accent);
  background: #f0a20218;
  box-shadow: 0 0 0 1px #f0a20255;
}
.part-name {
  font-weight: 600;
  font-size: 0.82rem;
}
.part-blurb {
  font-size: 0.68rem;
  color: var(--text-dim);
  line-height: 1.3;
}
.part-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.25rem;
  margin-top: 0.2rem;
}
.pill {
  font-size: 0.62rem;
  padding: 0.1rem 0.35rem;
  border-radius: 999px;
  background: #21262d;
  border: 1px solid var(--border);
  color: var(--cyan);
  font-family: var(--mono);
}
.pill.muted { color: var(--text-dim); }

/* Ops list */
.op-list {
  list-style: none;
  margin: 0;
  padding: 0.35rem 0.75rem 0.6rem;
  max-height: 9rem;
  overflow-y: auto;
  font-size: 0.75rem;
}
.op-list li {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.3rem 0.4rem;
  border-radius: 5px;
  border: 1px solid transparent;
  color: var(--text-dim);
}
.op-list li.active {
  background: #f0a20222;
  border-color: #f0a20255;
  color: var(--text);
}
.op-list li.muted { font-style: italic; }
.op-label { flex: 1; }
.op-tool {
  font-family: var(--mono);
  font-size: 0.68rem;
  color: var(--accent);
}
.op-axes {
  font-family: var(--mono);
  font-size: 0.65rem;
  color: var(--a);
}

/* Active tool panel */
.active-tool-panel {
  display: flex;
  gap: 0.65rem;
  align-items: center;
  padding: 0.55rem 0.75rem;
  background: #0a0e14;
  margin: 0.4rem 0.75rem 0;
  border: 1px solid var(--border);
  border-radius: 8px;
}
.active-tool-panel.flash {
  border-color: var(--accent);
  box-shadow: 0 0 12px #f0a20255;
}
#toolIconCanvas {
  width: 72px;
  height: 72px;
  border-radius: 6px;
  border: 1px solid var(--border);
  background: #0d1117;
  flex-shrink: 0;
}
.active-tool-meta { min-width: 0; }
.tool-t {
  font-family: var(--mono);
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--accent);
}
.tool-name { font-size: 0.85rem; font-weight: 600; }
.tool-dia, .tool-tip {
  font-family: var(--mono);
  font-size: 0.72rem;
  color: var(--text-dim);
}

.tool-table {
  width: calc(100% - 1.5rem);
  margin: 0.35rem 0.75rem 0.5rem;
  border-collapse: collapse;
  font-size: 0.7rem;
  font-family: var(--mono);
}
.tool-table th, .tool-table td {
  border: 1px solid var(--border);
  padding: 0.25rem 0.35rem;
  text-align: left;
}
.tool-table th {
  background: #21262d;
  color: var(--text-dim);
  font-weight: 600;
}
.tool-table tbody tr.active {
  background: #f0a20222;
  color: var(--accent);
}

/* Axes HUD overlay on iso */
.iso-wrap {
  position: relative;
  flex: 1 1 auto;
  min-height: 240px;
  display: flex;
}
#isoCanvas {
  width: 100%;
  flex: 1 1 auto;
  min-height: 240px;
}
.axes-hud {
  position: absolute;
  top: 8px;
  right: 8px;
  display: flex;
  flex-wrap: wrap;
  gap: 0.3rem;
  pointer-events: none;
  max-width: 55%;
  justify-content: flex-end;
}
.hud-axis {
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
  font-family: var(--mono);
  font-size: 0.68rem;
  padding: 0.15rem 0.4rem;
  border-radius: 4px;
  background: rgba(10, 14, 20, 0.85);
  border: 1px solid var(--border);
  color: var(--text-dim);
}
.hud-axis em {
  font-style: normal;
  color: var(--text);
  font-weight: 600;
}
.hud-axis.x { border-color: #ff6b6b66; }
.hud-axis.x em { color: var(--x); }
.hud-axis.y { border-color: #51cf6666; }
.hud-axis.y em { color: var(--y); }
.hud-axis.z { border-color: #74c0fc66; }
.hud-axis.z em { color: var(--z); }
.hud-axis.a { border-color: #e3b34166; display: none; }
.hud-axis.a em { color: var(--a); }
.hud-axis.b { border-color: #d2a8ff66; display: none; }
.hud-axis.b em { color: var(--b); }
.hud-axis.moving {
  background: rgba(240, 162, 2, 0.35);
  border-color: var(--accent);
  box-shadow: 0 0 8px #f0a20288;
  transform: scale(1.05);
}
.dro-row.moving {
  border-color: var(--accent);
  box-shadow: 0 0 6px #f0a20255;
}

.tool-change-overlay {
  position: absolute;
  left: 50%;
  top: 18%;
  transform: translateX(-50%);
  background: rgba(240, 162, 2, 0.95);
  color: #1a1200;
  font-weight: 700;
  font-size: 0.95rem;
  letter-spacing: 0.04em;
  padding: 0.45rem 1rem;
  border-radius: 6px;
  border: 2px solid #1a1200;
  pointer-events: none;
  z-index: 2;
  white-space: nowrap;
  box-shadow: 0 4px 20px rgba(0,0,0,0.45);
}
.tool-change-overlay.hidden { display: none; }

@media (max-width: 900px) {
  .part-cards { grid-template-columns: repeat(auto-fill, minmax(140px, 1fr)); }
}

/* Catalog groups (axis demos vs aircraft) */
.part-catalog-body {
  display: flex;
  flex-direction: column;
  gap: 0.55rem;
}
.catalog-group-title {
  margin: 0 0 0.3rem;
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.07em;
  color: var(--accent);
  font-weight: 600;
}
.catalog-group.aircraft .catalog-group-title {
  color: var(--text-dim);
}
.catalog-group.demo .part-card {
  border-color: #e3b34155;
  background: #1a1810;
}
.catalog-group.demo .part-card.selected {
  border-color: #e3b341;
  background: #e3b34122;
  box-shadow: 0 0 0 1px #e3b34166;
}
.pill.demo {
  background: #e3b34133;
  border-color: #e3b34188;
  color: #e3b341;
  font-weight: 700;
}
.pill.axis3 { color: #58a6ff; }
.pill.axis4 { color: #e3b341; }
.pill.axis5 { color: #d2a8ff; }

/* On-canvas demo caption */
.demo-caption {
  position: absolute;
  left: 50%;
  bottom: 10px;
  transform: translateX(-50%);
  max-width: 92%;
  padding: 0.4rem 0.75rem;
  border-radius: 6px;
  background: rgba(10, 14, 20, 0.88);
  border: 1px solid #e3b34188;
  color: #f0e6c8;
  font-size: 0.78rem;
  font-weight: 600;
  text-align: center;
  pointer-events: none;
  z-index: 2;
  box-shadow: 0 4px 16px rgba(0,0,0,0.4);
  line-height: 1.35;
}
.demo-caption.hidden { display: none; }


/* ── Learn the axes / video references ───────────────────────── */
.learn-axes {
  padding: 0.55rem 1rem 0.7rem;
  border-bottom: 1px solid var(--border);
  background: #0f1419;
}
.learn-axes-header {
  display: flex;
  align-items: baseline;
  gap: 0.75rem;
  margin-bottom: 0.35rem;
}
.learn-axes-header h2 {
  margin: 0;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-dim);
}
.learn-axes-hint {
  font-size: 0.72rem;
  color: var(--cyan);
}
.learn-axes-note {
  margin: 0 0 0.5rem;
  font-size: 0.72rem;
  color: var(--text-dim);
  line-height: 1.4;
  max-width: 72rem;
}
.learn-axes-note strong {
  color: var(--accent);
  font-weight: 600;
}
.learn-axes-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 0.4rem;
}
.learn-axes-item {
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
  padding: 0.5rem 0.65rem;
  background: var(--bg-panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  transition: border-color 0.12s, background 0.12s;
}
.learn-axes-item:hover {
  border-color: var(--border-bright);
  background: var(--bg-elevated);
}
.learn-axes-item.optional {
  border-style: dashed;
  opacity: 0.95;
}
.learn-tag {
  align-self: flex-start;
  font-size: 0.62rem;
  font-weight: 700;
  font-family: var(--mono);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  padding: 0.12rem 0.4rem;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: #21262d;
  color: var(--text-dim);
}
.learn-tag.explainer {
  color: #e3b341;
  border-color: #e3b34188;
  background: #e3b34122;
}
.learn-tag.overview {
  color: var(--blue);
  border-color: #58a6ff66;
  background: #58a6ff18;
}
.learn-tag.shop {
  color: var(--green);
  border-color: #3fb95066;
  background: #3fb95018;
}
.learn-tag.why5 {
  color: #d2a8ff;
  border-color: #d2a8ff66;
  background: #d2a8ff18;
}
.learn-tag.article {
  color: var(--cyan);
  border-color: #39d2c066;
  background: #39d2c018;
}
.learn-axes-body {
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
  min-width: 0;
}
.learn-link {
  color: var(--text);
  font-size: 0.8rem;
  font-weight: 600;
  text-decoration: none;
  line-height: 1.3;
}
.learn-link:hover {
  color: var(--accent);
  text-decoration: underline;
}
.learn-link::after {
  content: " ↗";
  font-size: 0.7em;
  opacity: 0.7;
}
.learn-why {
  margin: 0;
  font-size: 0.68rem;
  color: var(--text-dim);
  line-height: 1.35;
}

@media (max-width: 720px) {
  .learn-axes-list { grid-template-columns: 1fr; }
}